Method for preparing alkaline manganese oxide nano tube by room temperature corrosion

A technology of manganese oxide and nanotubes, which is applied in the field of materials science and engineering, can solve the problems of fewer types of micro-nanotube materials, and achieve the effect of speeding up the preparation process, less equipment, and easy industrialized large-scale production

Active Publication Date: 2017-11-24
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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Problems solved by technology

[0003] In addition, micro-nanotubes have broad application prospects due to their surface effects, size effects, and quantum effects. However, the types of materials successfully prepared for micro-nanotubes are relatively small, and it is also important to actively expand the types of materials for micro-nanotubes. significance

Method used

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  • Method for preparing alkaline manganese oxide nano tube by room temperature corrosion
  • Method for preparing alkaline manganese oxide nano tube by room temperature corrosion
  • Method for preparing alkaline manganese oxide nano tube by room temperature corrosion

Examples

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example 1

[0032] The method for preparing Cu micro-nano plate structure comprises the following steps:

[0033] (1) Preparation of Cu-Mn-O alloy ingots: After mixing pure Cu and pure Mn at an atomic ratio of 20:30, mix 8% air in an argon atmosphere, repeat three times for arc melting, and mix Uniform cooling to obtain Cu-Mn-O alloy ingot;

[0034] (2) Corrosion: place the obtained Cu-Mn-O alloy ingot in a 0.05mol / L hydrochloric acid solution, and place it at room temperature for 70 to 80 hours to corrode until no bubbles overflow from the surface of the alloy ingot;

[0035] (3) Cleaning and drying: take out the corroded Cu-Mn-O alloy ingot, first soak and clean the corroded Cu-Mn-O alloy ingot with deionized water once, and then soak and clean it twice with alcohol , and then placed in alcohol and subjected to ultrasonic dispersion treatment, and finally, natural drying at room temperature for 15 to 24 hours to obtain the MnO(OH) micro-nano tube structure. The cleaning and drying pro...

example 2

[0039] This example prepares the method for Cu micro-nano flake structure and comprises the following steps:

[0040] (1) Preparation of Cu-Mn-O alloy ingots: After mixing pure Cu and pure Mn at an atomic ratio of 18:28, 5% air was mixed in an argon atmosphere, and induction melting was repeated five times. Mix uniformly and cool to obtain a Cu-Mn-O alloy ingot;

[0041] (2) Corrosion: place the obtained Cu-Mn-O alloy ingot in a 0.03mol / L hydrochloric acid solution, and place it at room temperature for 68 to 78 hours to corrode until no bubbles overflow from the surface of the alloy ingot;

[0042] (3) Cleaning and drying: take out the corroded Cu-Mn-O alloy ingot, soak and clean the corroded Cu-Mn-O alloy ingot obtained with deionized water for 3 times, and then soak and clean with alcohol for 4 times , and then placed in alcohol and subjected to ultrasonic dispersion treatment, and finally dried naturally at room temperature for 15-24 hours to obtain the MnO(OH) micro-nano ...

example 3

[0044] This example prepares the method for Cu micro-nano flake structure and comprises the following steps:

[0045] (1) Preparation of Cu-Mn-O alloy ingots: After mixing pure Cu and pure Mn in an atomic ratio of 20:28, 10% air was mixed in an argon atmosphere, and arc melting was repeated five times. After mixing uniformly, cool to obtain Cu-Mn-O alloy ingot;

[0046](2) Corrosion: place the obtained Cu-Mn-O alloy ingot in a 0.07mol / L hydrochloric acid solution, and place it at room temperature for 70 to 75 hours to corrode until no bubbles overflow from the surface of the alloy ingot;

[0047] (3) Cleaning and drying: take out the corroded Cu-Mn-O alloy ingot, soak and clean the corroded Cu-Mn-O alloy ingot obtained with deionized water for 2 times, and then soak and clean with alcohol for 3 times , then placed in alcohol and subjected to ultrasonic dispersion treatment, and finally dried naturally at room temperature for 15 to 24 hours to obtain a stable MnO(OH) micro-nan...

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Abstract

The invention discloses a method for preparing an alkaline manganese oxide nano tube by room temperature corrosion. The method comprises the following steps of (1) preparing a Cu-Mn-O alloy ingot: mixing pure Cu and pure Mn at an atomic ratio of (18-20):(28-30), supplying partial air to an argon atmosphere, performing repeated smelting for more than three times, performing uniform mixing, and then performing cooling to obtain the Cu-Mn-O alloy ingot; (2) performing corrosion: placing the obtained Cu-Mn-O alloy ingot in a 0.03-0.07mol/L excessive hydrochloric acid solution, and performing the corrosion for 60-80h at a room temperature until the surface of the alloy ingot has no bubble overflow to obtain the corroded Cu-Mn-O alloy ingot; and (3) performing cleaning and drying: taking out the corroded Cu-Mn-O alloy ingot, sequentially soaking and cleaning the Cu-Mn-O alloy ingot by deionized water and alcohol, placing the Cu-Mn-O alloy ingot in the alcohol, performing ultrasonic dispersion treatment, and performing the drying to obtain an MnO(OH) micro-nano tube structure. According to the method, the MnO(OH) micro-nano tube is prepared under a room temperature condition by regulating and controlling a component and a structure of a master alloy and combining a simple room temperature corrosion method, and a novel technical approach is provided for preparing the MnO(OH) micro-nano tube.

Description

technical field [0001] The invention relates to the field of material science and engineering, in particular to a method for preparing alkaline manganese oxide nanotubes by corrosion at room temperature. Background technique [0002] mn 3 o 4 As a catalyst, it has important applications in industry, and its preparation is often obtained by first obtaining the precursor MnO(OH), and then preparing MnO(OH) by high-temperature calcination. 3 o 4 . At present, the preparation of MnO(OH) often needs to be carried out in a hot solution, which makes the related process control more difficult and requires higher equipment. Therefore, it is of great significance to explore the facile preparation technology of MnO(OH) at room temperature. [0003] In addition, micro-nanotubes have broad application prospects due to their surface effects, size effects, and quantum effects. However, the types of materials successfully prepared for micro-nanotubes are relatively small, and it is als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G45/02B82Y40/00
CPCC01G45/02C01P2002/72C01P2004/03C01P2004/04C01P2004/13
Inventor 刘学马斌斌李晋锋乐国敏姚可夫
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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